New syntheses of enantiopure 2-methyl isoserines

Add time:08/29/2019    Source:sciencedirect.com

Herein we describe the synthesis of the two enantiomerically pure 3-amino-2-hydroxy-2-methylpropionic acids––(S)- and (R)-α-methyl isoserines––starting from the chiral diols (S)- and (R)-2,3-dihydroxy-N-methoxy-2,N-dimethylpropionamides, respectively, which were obtained by Sharpless asymmetric dihydroxylation (AD) of the olefin N-methoxy-2,N-dimethylacrylamide with AD-mix α or β as chiral catalytic ligands.

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